Dzhalindite

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Dzhalindite is a rare indium hydroxide mineral with the formula In(OH)3. It was first found in Siberia and described in 1963 for the Dzhalinda tin deposit in the Dzhalinda area of the Far-Eastern region, Russia. The mineral crystallizes in a cubic system (space group Im3) and forms yellow-brown crystals that appear light yellow in transmitted light and dark gray in reflected light. Dzhalindite is typically massive in shape, with a Mohs hardness of about 4 to 4.5 and a specific gravity around 4.38. It is isotropic optically, with a refractive index of about 1.725.

Beyond its type locality, Dzhalindite has been reported in various places around the world, including Mount Pleasant, New Brunswick, Canada; the Flambeau mine in Wisconsin, USA; the Mangabeira tin deposit in Goiás, Brazil; the Attica mines of the Lavrion District, Greece; the Ore Mountains in Germany and the Czech Republic; the Chūbu region of Honshu, Japan; and the Arashan Massif near Tashkent, Uzbekistan.